Film Former
ISOBUTYL POLYSILSESQUIOXANE
Safety score · 0–100
Fine
Derived from EU CosIng regulatory status, PubChem hazard data and published research. How we score.
About
A silicone resin powder used in foundations and primers for soft-focus blur and oil absorption. Inert and well tolerated topically; standard powder-inhalation caveat applies.
Function
Skin benefits
- Soft-focus optical blur on skin
- Sebum and oil absorption
- Smooth silicone-like skin feel
Known concerns
- Inert silicone resin with limited toxicology data
- Particle inhalation caution in loose powders
References
EU CosIng database
European Commission cosmetic ingredient registry — regulatory status, restrictions, authorised functions.
Related film formers
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This profile is for educational purposes and does not constitute medical advice. Regulatory status and scientific understanding evolve — always read the physical product label and consult a healthcare professional for personal concerns.